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FAIR VALUE MEASUREMENT (Tables)
3 Months Ended
Mar. 31, 2022
Notes 2021 and 2024 | Level 3  
Schedule of Fair Value Assumptions

    

2024 Notes

Stock price (USD)

 

1.06

Expected term

 

2.42

Risk free rate

 

2.42

%

Volatility

 

80.67

%

Yield

 

10.39

%